CN102563910A - Air and water composite heat collector - Google Patents

Abstract

The invention discloses an air and water composite heat collector, which comprises a casing, a heat absorbing plate, and a glass cover plate. The glass cover plate and the heat absorbing plate are sequentially fixed to the shell, and multiple groups of corrugated plates are arranged side by side in the shell , each group of corrugated plates is composed of two corrugated plates; each group of corrugated plates is separated by a partition to form multiple independent channels, and the two ends of each channel are respectively provided with an air inlet and an air outlet, and the air inlet and the air outlet pass through Two corrugated plates are axially spaced apart in the shell to form a curved flow path. It is characterized by uniform temperature and is suitable for many occasions; the use of flowing air increases the convective heat transfer coefficient of the lower surface of the heat-absorbing plate, takes away the excess heat of the heat-absorbing plate, reduces the total heat loss of the collector, and realizes heat dissipation. Simultaneous preparation of water and hot air, the invention has a simple structure, can be used throughout the year, has high heat exchange efficiency and wide application range.

Description

An air and water composite heat collector

technical field

The invention relates to a heat collector, which belongs to the field of solar heat utilization, and specifically refers to an air and water composite heat collector. the

Background technique

Since solar energy is clean, non-polluting, and inexhaustible, it has naturally become the "golden energy" in people's eyes in today's energy shortage. It is one of the problems that people are currently concerned about. At present, the solar air collectors on the market have single application, large heat loss, low heat exchange efficiency, and will be idle if there is no requirement for heating and drying. The utility model of the patent application number ZL 87203618 is characterized in that the heat absorbing body adopts metal shavings remaining from metal cutting to increase the heat absorbed by the heat absorbing body. The utility model of the patent application number ZL 85205391 is characterized in that the back of the heat absorbing plate has staggered distribution of small protruding circles by means of molding, which improves the heat transfer between the heat absorbing plate and the airflow. However, these heat collectors have a small heat transfer stroke, cannot absorb the heat on the heat absorbing plate to the greatest extent, and cannot simultaneously produce hot air and hot water. In order to increase the heat exchange stroke, there are also heat collectors with partitions arranged along the width direction, but the increased heat exchange stroke is limited, and the inner space of the heat collector is not utilized to the maximum extent. the

Contents of the invention

The purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art, and provide an air-water composite heat collector, which overcomes the defect of uneven air temperature produced by common heat collectors and makes full use of solar energy resources. the

Technical route of the present invention is as follows:

An air and water composite heat collector, including a shell, a heat-absorbing plate, and a glass cover plate. The glass cover plate and the heat-absorbing plate are sequentially fixed to the shell, and multiple sets of corrugated plates are arranged side by side in the shell, and each set of corrugated plates The plate is composed of two corrugated plates; each group of corrugated plates is separated by a partition to form multiple independent channels, and the two ends of each channel are respectively provided with an air inlet and an air outlet, and the air inlet and the air outlet pass through two corrugated plates Separated along the axial direction of the shell to form a curved flow path. the

The upper surface of the heat absorbing plate is coated with an absorbing coating, and the lower surface has a knurled structure. the

The air outlets are collected into one general outlet by the retractable air collecting cover 7 . the

The shell and the partition are integrally formed. the

Compared with the prior art, the present invention has the following advantages:

Multiple groups of corrugated plates are arranged side by side in the shell, and each group of corrugated plates is composed of two corrugated plates; each group of corrugated plates is separated by a partition to form multiple independent channels, and the two ends of each channel are respectively provided with air inlets and The air outlet, the air inlet and the air outlet are separated axially by two corrugated plates to form a curved flow channel. This structure utilizes the waste heat of heat exchange between the heat absorbing plate and water without causing selective coating corrosion. , reduces heat loss, improves solar energy conversion efficiency, and meets the dual needs of the family for heating and hot water. the

Each group of corrugated plates is separated by partitions and forms multiple independent channels, each channel is formed by corrugated plates into a curved path, extending the heat exchange stroke by 2 times to fully exchange heat; and the corrugated plates themselves are waves The shape also increases the turbulence of the air flow and improves the heat exchange efficiency. the

The shell and partition are integrally formed to reduce heat loss; each independent channel makes the outlet air temperature uniform. the

The air outlet is distributed in a shrinking shape, and the air outlet is uniformly collected by the shrinkable air collecting cover. Its structural characteristics make the air flow more uniform and stable, suitable for household heating and drying operations in production. the

Description of drawings

Fig. 1 is a schematic diagram of the assembly structure of the present invention. the

Fig. 2 is a schematic diagram of the internal specific structure of the present invention. the

Fig. 3 is a structural schematic diagram of a corrugated plate in the present invention. the

Fig. 4 is a schematic structural view of the retractable air collecting cover in the present invention. the

In the figure: frame 1; air inlet 1a; air outlet 1b; glass cover 2; heat absorbing plate 3; circulating water pipe 4; corrugated plate 5; partition 6; channel 7; Threaded hole 8a. the

Detailed ways

Below in conjunction with the accompanying drawings, the specific implementation process is described as follows:

As shown in Fig. 1 and Fig. 2, an air and water composite heat collector of the present invention includes a shell 1, a heat absorbing plate 3, and a glass plate 2, and the glass cover plate 2 and the heat absorbing plate 3 are sequentially connected with the shell 1 is fixed, and multiple groups of corrugated plate groups 5 are arranged side by side in the housing 1, and each group of corrugated plates 5 is composed of two corrugated plates; each group of corrugated plates 5 is separated by a partition 6 to form a plurality of independent channels 7, Both ends of each channel 7 are provided with an air inlet 1a and an air outlet 1b respectively, and the air inlet 1a and the air outlet 1b are separated by two corrugated plates along the axial direction of the housing 1 to form a curved flow path. The independent channels 7 can effectively reduce heat loss. The corrugated plates 5 in each channel increase the air heat exchange stroke by 2 times and play the role of increasing the turbulence and improving the heat exchange. the

The upper surface of the heat absorbing plate 3 is coated with an absorbing coating, and the lower surface has a knurled structure. The air outlet 1b is collected into a general outlet by the retractable air collection cover 8, and the retractable air collection cover 8 is provided with an air collection cover installation threaded hole 8a. The housing 1 and the partition 6 are integrally formed. the

The heat absorbing plate 3 and the circulating water pipe 4 are connected by laser welding, which greatly reduces the contact thermal resistance between the two. the

As shown in Figure 3, the corrugated plate 5 can be made of galvanized iron sheet. the

As shown in Figure 4, the shape of the retractable air collecting cover 8 has a large air inlet and a small air outlet, and is in the shape of a shrinking curve. Its end face has an air collecting cover installation threaded hole 8a, which can be conveniently fixedly connected with the housing. the

The above description is only a preferred embodiment of the present invention, and cannot limit the scope of the present invention. That is, the equivalent changes and modifications made according to the patent scope of the present invention and the content of the specification should still fall within the scope of the patent of the present invention. In the range. the

Claims (4)

1. An air and water composite heat collector, comprising a shell, a heat-absorbing plate, and a glass cover plate, and the glass cover plate and the heat-absorbing plate are fixed with the shell successively, and it is characterized in that: multiple sets of heat sinks are arranged side by side in the shell Corrugated board, each group of corrugated boards is composed of two corrugated boards; each group of corrugated boards is separated by a partition to form multiple independent channels, and the two ends of each channel are respectively equipped with air inlet and outlet, and air inlet and outlet The tuyeres are separated axially in the shell by two corrugated plates to form a curved flow path. 2. The air-water composite heat collector according to claim 1, characterized in that: the front surface of the heat-absorbing plate is coated with an absorbing coating, and the lower surface has a knurled structure. 3. The air-water composite heat collector according to claim 2, characterized in that: said air outlets are collected into a general outlet by a retractable air collecting cover. 4. The air-water composite heat collector according to claim 3, characterized in that: the shell and the partition are integrally formed.

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